these 2 derivations will be built:
  /nix/store/xm460x3lfg6n7zirrv2wsmfm12q3vzlv-nix-grpc-store-0.2.3.drv
  /nix/store/lchp0ch3x1ca9askjbqyzvv518hj8fy5-nix-grpc-store-dispatcher.drv